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POlog4j2 configuration is not loaded
 

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  1. POlog4j2 configuration is not loaded
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    <p>Can you help me spotting out the missing step for my configuration?</p> <p>I'm trying to add logger to my very simple web application: in order to do so I'm using log4j2 (beta9).</p> <p>I wrote down my <code>log4j2.xml</code> as follows</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;Configuration status="WARN"&gt; &lt;Appenders&gt; &lt;Console name="Console" target="SYSTEM_OUT"&gt; &lt;PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} /%L/[%M] - %msg%n"/&gt; &lt;/Console&gt; &lt;/Appenders&gt; &lt;Loggers&gt; &lt;Logger name="prova.Hello" level="trace" additivity="false"&gt; &lt;AppenderRef ref="Console"/&gt; &lt;/Logger&gt; &lt;Logger name="servletstest.TestLogger" level="trace" additivity="false"&gt; &lt;AppenderRef ref="Console"/&gt; &lt;/Logger&gt; &lt;Root level="trace"&gt; &lt;AppenderRef ref="Console"/&gt; &lt;/Root&gt; &lt;/Loggers&gt; &lt;/Configuration&gt; </code></pre> <p>and I put it in the WEB-INF folder.</p> <p>I have then a simple servlet which does the following </p> <pre><code>response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { /* TODO output your page here. You may use following sample code. */ out.println("&lt;!DOCTYPE html&gt;"); out.println("&lt;html&gt;"); out.println("&lt;head&gt;"); out.println("&lt;title&gt;Servlet TestLogger&lt;/title&gt;"); out.println("&lt;/head&gt;"); out.println("&lt;body&gt;"); out.println("&lt;h1&gt;Servlet TestLogger at " + request.getContextPath() + "&lt;/h1&gt;"); out.println("&lt;/body&gt;"); out.println("&lt;/html&gt;"); logger.error("error"); logger.info("info"); logger.trace("trace"); logger.debug("debug"); } finally { out.close(); } </code></pre> <p>As you can see it is just a try to see if the logger works as expected, but it does not. By reading here <a href="http://logging.apache.org/log4j/2.x/manual/webapp.html" rel="nofollow">web app</a> I don't need to configure the web.xml of my application because it runs servlet 3.0, infact if I try to add the configuration I get the following error</p> <pre><code>javax.servlet.UnavailableException: In a Servlet 3.0+ application, you must not define a log4jServletFilter in web.xml. Log4j 2 defines this for you automatically. </code></pre> <p>But it seems not to load the log4j2 configuration file, since the output I excpect is similar to </p> <pre><code>10:57:55.490 [http-bio-8084-exec-5] ERROR servletstest.TestLogger - error 10:57:55.490 [http-bio-8084-exec-5] INFO servletstest.TestLogger - info 10:57:55.490 [http-bio-8084-exec-5] TRACE servletstest.TestLogger - trace 10:57:55.490 [http-bio-8084-exec-5] DEBUG servletstest.TestLogger - debug </code></pre> <p>instead I get only</p> <pre><code>10:57:55.490 [http-bio-8084-exec-5] ERROR servletstest.TestLogger - error </code></pre> <p>it looks like is not able to load the xml file and it sets by default the logger level to error only. In the same web page is written </p> <blockquote> <p>In Tomcat 7 &lt;7.0.43 you will need to change catalina.properties and remove "log4j*.jar" from the jarsToSkip property. You may need to do something similar on other containers if they skip scanning Log4j JAR files.</p> </blockquote> <p>so I edited the catalina.properties becasuse I'm running tomcat 7.0.41 and I removed the log4j*.jar from the <code>jartoskip</code> property.</p> <p>What am I doing wrong?</p> <p>by the way in the web.xml I have this</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app id="WebApp_ID" version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"&gt; &lt;display-name&gt;test&lt;/display-name&gt; &lt;servlet&gt; &lt;servlet-name&gt;Jersey REST Service&lt;/servlet-name&gt; &lt;servlet-class&gt;org.glassfish.jersey.servlet.ServletContainer&lt;/servlet-class&gt; &lt;init-param&gt; &lt;param-name&gt;jersey.config.server.provider.packages&lt;/param-name&gt; &lt;param-value&gt;prova&lt;/param-value&gt; &lt;/init-param&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet&gt; &lt;servlet-name&gt;TestLogger&lt;/servlet-name&gt; &lt;servlet-class&gt;servletstest.TestLogger&lt;/servlet-class&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Jersey REST Service&lt;/servlet-name&gt; &lt;url-pattern&gt;/rest/*&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;TestLogger&lt;/servlet-name&gt; &lt;url-pattern&gt;/TestLogger&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;listener&gt; &lt;listener-class&gt;org.apache.logging.log4j.core.web.Log4jServletContextListener&lt;/listener-class&gt; &lt;/listener&gt; &lt;/web-app&gt; </code></pre> <p>You can notice that <code>version</code> is 2.5 and not properly 3.0 is perhaps this affecting me somehow? or jersey configuration?</p> <p>EDIT: I tried again and changed the <code>web.xml</code> to the following in order to have a web app version of 3.0 but it does not load the configuration.. what am I doing wrong?</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"&gt; &lt;servlet&gt; &lt;servlet-name&gt;Prova&lt;/servlet-name&gt; &lt;servlet-class&gt;test.Prova&lt;/servlet-class&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Prova&lt;/servlet-name&gt; &lt;url-pattern&gt;/Prova&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;session-config&gt; &lt;session-timeout&gt; 30 &lt;/session-timeout&gt; &lt;/session-config&gt; &lt;/web-app&gt; </code></pre> <p>thanks in advance for the help. </p>
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    1. COTry putting it in `WEB-INF/classes` instead of `WEB-INF`
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    2. COi will try, but can you tell me what's the sense in doing this? i mean web-inf/classes isn't generated at compile time?
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    3. COok this worked, thank you!Anyhow it seems very very strange I don't get the point in putting it there :-\
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